Solar System Crossword Puzzle

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Across
  1. 2. Is the fastest spinning planet in the solar system.
  2. 4. the object's orbital motion around another object.
  3. 6. Sum thing that turns in.
  4. 7. is known as the red planet.
Down
  1. 1. is the smallest planet
  2. 3. is where people live.
  3. 5. A day on venus is longer then an earth year.